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FLASHING INSTALLATION: 
 (V6F-8DM or V6F-8DM) 
 

Determine the flashing to be used with the roof-opening chart.  
Slide flashing over pipe until base is flat against roof.  Replace 
as many shingles as needed to cover exposed area and flashing 
base.  Secure in position by nailing through shingles (see 
figure 20). DO NOT NAIL THROUGH FLASHING CONE. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

STORM COLLAR INSTALLATION: (VSC1-8DM) 

 
Place storm collar over pipe and slide down until it is snug 
against the open edge of the flashing (see figure 21). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Apply waterproof caulking to all seams and notches around 
storm collar and also at base around shingles. 
 

TERMINATIONS: 

STANDARD INSTALLATONS: 
 
The fireplace system must be terminated with the listed round 
top or square chase terminations.  The terminations approved 
for this fireplace are RTL-8DM, which can be used for 
flashing or chase and ETL-8DM for chase style termination 
only.  Figure 21 shows an RTL-8DM round top termination.  
 
 

FOLLOW THE INSTALLATION INSTRUCTIONS 
PROVIDED WITH THE TERMINATION BEING USED. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
CHASE INSTALLATIONS: 

 
Instructions for chase installations are included with the chase 
style termination chosen.  In a multiple chase installation, be 
sure to provide adequate distance between terminations to 
prevent smoke spillage from one termination to another.  It is 
recommended that terminations be separated at least 24 
inches, center-to-center, and stacked at vertical height 
difference of 18 inches or more (see figure 23). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

10-FOOT RULE: 

 
All flue gas outlets of chimney terminations must extend a 
minimum of three feet in height above the highest point where 
it passes through the roof and must be at least two feet above 
the highest point of the roof that is within a horizontal distance 
of ten feet (see figure 24). 
 

 

Figure 20         FLASHING INSTALLATION 

Figure 21   STORM COLLAR INSTALLATION 

 

Figure 23    MULTIPLE CHASE TERMINATIONS 

 

Figure 22     TERMINATION INSTALLATION 

Summary of Contents for 42C

Page 1: ...ndard A DESA hood must be installed when using a vent free gas log set See accessories on pg 11 WARNING ALWAYS LEAVE GLASS DOORS FULLY OPENED OR FULLY CLOSED WHEN OPERATING THIS FIREPLACE DESA INTERNATIONAL 2701 INDUSTRIAL DRIVE P O BOX 90024 BOWLING GREEN KY 42102 9004 www desatech com PN 54016 REV B 10 00 SAVE THIS BOOK This book is valuable In addition to instructing you on how to install your ...

Page 2: ...ALLING THE FIREPLACE PG 3 8 HEARTH EXTENSION PG 4 9 OUTSIDE AIR KIT PG 4 10 GAS LINE INSTALLATION PG 4 11 VENT FREE GAS LOG INSTALLATION PG 5 12 COLD CLIMATE INSTALLATIONS PG 5 13 CHIMNEY PIPE PG 6 7 14 PENETRATING THE ROOF PG 8 15 FLASHING INSTALLATION PG 9 16 STORM COLLAR INSTALLATIONS PG 9 17 TERMINATIONS PG 9 18 FINISHING THE FIREPLACE PG 10 19 MANTEL CLEARANCES PG 10 17 REPLACEMENT AND ACCESS...

Page 3: ...ortant step in ensuring safe and continuous operation of this fireplace SELECTING LOCATION To determine the safest and most efficient location for your fireplace consider the following guidelines The location must allow for all proper clearances see page 3 The location should be in a place where the fireplace will not be affected by drafts such as air condition ducts windows or doors A location th...

Page 4: ...e level of the fireplace and shim with sheet metal if necessary STEP 5 Before securing fireplace to prepared framing the ember protector provided must be placed between hearth extensions not supplied and under the bottom front edge of the fireplace to protect against glowing embers falling through If the fireplace is to be installed on a raised platform a Z type ember protector not supplied must b...

Page 5: ...IT MODELS AK4 OR AK4F The outside air kit must be installed during the rough framing of the fireplace due to the nature of its location Outside combustion air can be accessed through an exterior wall Model AK4 or a vented crawl space Model AK4F See figure 6 and Accessories on page 11 Avoid installing outside air eyebrow in areas where inlet opening may be blocked by snow bushes or other obstacles ...

Page 6: ...t be installed when using an unvented gas log set see accessories on page 11 VENTED GAS LOG INSTALLATION If you install a decorative gas appliance vented gas log the decorative gas appliance must comply with the Standard for Decorative Gas Appliance for Installation in solid fuel burning fireplace ANS Z21 60 1996 Z21 84 or RGA 2 72 and shall also be installed in accordance with the National Fuel G...

Page 7: ...e wall pipe segments planned for maximum adaptability to individual site requirements Actual lengths gained lineal gain after fitting overlaps must be taken into consideration see figure 12 Each double wall chimney section consists of a galvanized outer pipe a stainless steel inner flue pipe and a wire spacer The pipe sections must be assembled independently as the chimney is installed When attach...

Page 8: ...as required by most codes When the double wall pipe passes through a framed opening into an attic space the firestop must be place into the attic floor as in figure 16 When the pipe passes through a framed opening into a living space above the firestop must be placed onto the ceiling from below as shown in figure 16 1 elbow set 16 to 60 ft system height 2 elbow sets 30 to 60 ft system height Figur...

Page 9: ...ure 19 to determine the correct opening length and flashing required STEP 4 Remove the shingles around the opening measured and cut out this section STEP 5 Add the next sections of the pipe until the end penetrates the roofline Check to see that the proper clearances are maintained Extend chimney by adding sections of double wall pipe until pipe is a minimum of 30 inches above the highest point of...

Page 10: ...lashing or chase and ETL 8DM for chase style termination only Figure 21 shows an RTL 8DM round top termination FOLLOW THE INSTALLATION INSTRUCTIONS PROVIDED WITH THE TERMINATION BEING USED CHASE INSTALLATIONS Instructions for chase installations are included with the chase style termination chosen In a multiple chase installation be sure to provide adequate distance between terminations to prevent...

Page 11: ...e placed at least 9 inches above the opening of the fireplace see figure 25 Combustible materials above 9 inches and projecting more than 1 inches from the front face of the fireplace must be place at least 12 inches above the fireplace opening Ref NFPA std 7 3 3 3 Mantels or any other combustible material may butt up to the side of the black metal face of the fireplace The clearances from the sid...

Page 12: ...n visit www desatech com Desa International 2701 Industrial Drive P O Box 90024 Bowling Green KY 42102 9004 www desatech com 800 323 5190 ACCESSORY PARTS REPLACEMENT PARTS CONTACT YOUR LOCAL DEALER CONTACT YOUR LOCAL DEALER ...

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